What causes my face to turn red when i do physical work. happens when i get hot also. sometimes heart beats faster & get outta breath when working. ?

Flushing and heart: Im not a big subscriber in looking for zebras when horses are present. However your condition merits that your physician look for neuroendocrine tumors which can a constellation of symptoms among which cutaneous flushing, gastrointestinal hypermotility, and cardiac involvement are the most common. Castillo et al 2012 bronchospasm causes shortness of breath and another sign of these tumors.